In this scene, I put three objects: a plane, a temple and a house. I added an audio to the plane and it worked pretty well. A big problem was the flashing light when I was walking in the scene. I was not sure what the problem was. I have tried adjusting the lighting and the position and level of first person controller but they did not work.

My scene is in a peaceful village. The user needs to find the components and triggers to fly the plane.  I do not have a really good idea about how it should be designed, but the process of discovering the elements should be a little bit challenge.